No traffic light or signage... white lines means F-All.
The white line you have hung your hat on.
Well it was painted when the bypass was made dual carriageway and traffic lights installed.
The traffic lights was a catastrophic disaster for traffic management and were no longer used shortly after implementation, this was around 2015 from memory.... maybe a few years earlier.
No more traffic lights = white lines means F-All.
Run along champ... you have zero knowledge to comment on this road.